Home / 21,033,008.80-31,549,513.20-20,193,200.80

Finding the Fourth Proportional to 21,033,008.80, 31,549,513.20 and 20,193,200.80

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Solution

The fourth proportional to 21,033,008.80, 31,549,513.20 and 20,193,200.80 is: 30,289,801.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,033,008.80 : 31,549,513.20 = 20,193,200.80 : x
  2. Step 2: Convert to fraction form
    21,033,008.80/31,549,513.20 = 20,193,200.80/x
  3. Step 3: Cross multiply
    21,033,008.80x = 31,549,513.20 × 20,193,200.80
  4. Step 4: Simplify right side
    21,033,008.80x = 637,085,655,189,850.62
  5. Step 5: Solve for x
    x = 637,085,655,189,850.62/21,033,008.80
  6. Step 6: Final answer
    x = 30,289,801.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.